This paper presents the design and embedded implementation of a robust controller for the transformerless multilevel active monophase rectifier. In order to reduce the effects caused by the uncertainty originated by the output load, an algebraic estimator is devised. Then, a linear controller based on the exact static error dynamics passive output feedback (ESEDPOF) is proposed, where the uncertainty estimation is taken into account. Since the controller estimator is based on the continuous-time plant model, its real-time implementation on a digital platform requires a discretization of the controller under sufficiently fast sampling, such that the properties of the closed-loop nonlinear sampled-data system are preserved. For this reason, the medium-scale field-programmable gate array Spartan-6 XC6SLX16 is used for implementing the ESEDPOF controller, the online algebraic estimator, the enhanced phase-locked loop, and the multilevel pulsewidth modulator. The parallel processing provided by these devices and the capability in the design of custom modules allow optimizing the hardware description and obtaining an update time for the control law of 9.683 $\mu$s. Experimental validation shows an excellent dynamical performance and a near-unity power factor.

中文翻译：

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基于FPGA的无源多级有源整流器的无源控制和输出负载代数估计的FPGA实现。

本文介绍了无变压器多电平有源单相整流器的鲁棒控制器的设计和嵌入式实现。为了减少由输出负载引起的不确定性引起的影响，设计了代数估计器。然后，提出了一种基于精确静态误差动态无源输出反馈（ESEDPOF）的线性控制器，其中考虑了不确定性估计。由于控制器估计器基于连续工厂模型，因此其在数字平台上的实时实现需要在足够快速的采样下离散化控制器，以便保留闭环非线性采样数据系统的属性。 。为此原因，中型现场可编程门阵列Spartan-6 XC6SLX16用于实现ESEDPOF控制器，在线代数估计器，增强型锁相环和多级脉宽调制器。这些设备提供的并行处理能力以及定制模块的设计能力，可以优化硬件描述并获得9.683个/μs控制律的更新时间。实验验证显示出出色的动态性能和接近单位的功率因数。